February 2008
Oceans (9781405321754);2008, p18
Book Chapter
A chapter from the book "Oceans" is presented. It defines the difference in topography and composition between oceans floors and the continents that divide them. It discusses how changes in their respective movements affect each other creating such phenomena as the continental drift, creeping mantle and moving plates which are dotted with volcanoes and volcanic islands and are often the sites of earthquakes and tsunamis.


Related Articles

  • THE OCEAN FLOORS.  // Oceans (9781405321754);2008, p16 

    A chapter from the book "Oceans" is presented. It discusses how the study of ocean floors has enabled scientists to discover their great range of topography and capture them in detailed maps showing features such as continental shelves, abyssal plains and mid-ocean ridges. It also tells about...

  • MID-OCEAN RIDGES.  // Oceans (9781405321754);2008, p20 

    A chapter from the book "Oceans" is presented. It defines spreading rifts and mid-ocean ridges such as the Mid-Atlantic Ridge and the East Pacific Rise and how they are formed. It also discusses how the movements of the ridges and interaction with other elements on the ocean floor can cause new...

  • TSUNAMIS.  // Oceans (9781405321754);2008, p26 

    A chapter from the book "Oceans" is presented. It discusses how tsunamis are created as a result of an earthquake happening on the ocean floor. It describes that the plates of the Earth's crust are constantly moving against each other until it causes an earthquake. It also includes some...

  • LIFE IN SHALLOW SEAS.  // Oceans (9781405321754);2008, p60 

    A chapter from the book "Oceans" is presented. It describes the wide variety of nutrients available to sea animals living in shallow seas, on the fringes of continents that are covered by sunlit seas. It explains that the shallow sea floors are full of enriched sediments, and the shallow water...

  • ABYSSAL PLAINS.  // Oceans (9781405321754);2008, p30 

    A chapter from the book "Oceans" is presented. It discusses the abyssal plains, the vast flat areas composed of soft sediments on the ocean floor, which is formed from the eroded dust particles, gravel, sand and mud coming from rivers, and swept into the sea. Over the years, these soft sediments...

  • Mapping the margins. Wiley Jr., John P. // Smithsonian;Apr97, Vol. 28 Issue 1, p68 

    Presents images from the coastal United States where the North American continent meets the ocean floor. Images as produced by Lincoln Pratson and William Haxby from data collected at the United States National Geophysical Data Center; The Juan de Fuca Plate off of Oregon; The Gulf of Mexico...

  • WEIRD GEOLOGY.  // Skeptic;2001, Vol. 8 Issue 4, p103 

    Provides an explanation on what causes the continents to move. Importance of the lithospheric plates to the surface of the earth; Significance of the discovery of ocean floors for solving geological mysteries; Time-frame for the motion of a continent.

  • Oceans and Continents.  // Oceans Atlas;2007, p4 

    Information on oceans from a chapter of the book "Oceans Atlas: An Interactive Ocean Adventure" is presented. It notes that more than two-thirds of the planet are covered by the oceans. It explains that the ocean floors are areas where the Earth's interior has a thin crust of dark rock. The...

  • continental rise.  // American Heritage Student Science Dictionary;2009, p82 

    A definition of the term continental rise is presented. It refers to a wide and gentle incline from the ocean bottom to the continental slope. It is consists of silts, muds, and sand, and can be several hundreds of miles wide.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics